/* Example program using the lowlevel raw broadcast interface.
*/
+#include "config.h"
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
struct rpc_context *rpc;
struct pollfd pfd;
struct ifconf ifc;
- int i, size;
+ int size;
struct timeval tv_start, tv_current;
struct nfs_list_data data = {0, NULL};
struct nfs_server_list *srvr;
+ char *ptr;
rpc = rpc_init_udp_context();
if (rpc == NULL) {
ifc.ifc_buf = NULL;
ifc.ifc_len = size;
- while (ifc.ifc_len == size) {
+ while(ifc.ifc_len > (size - sizeof(struct ifreq))) {
size *= 2;
free(ifc.ifc_buf);
ifc.ifc_len = size;
ifc.ifc_buf = malloc(size);
+ memset(ifc.ifc_buf, 0, size);
if (ioctl(rpc_get_fd(rpc), SIOCGIFCONF, (caddr_t)&ifc) < 0) {
printf("ioctl SIOCGIFCONF failed\n");
exit(10);
}
}
- for (i = 0; (unsigned)i < ifc.ifc_len / sizeof(struct ifconf); i++) {
+ for (ptr =(char *)ifc.ifc_buf; ptr < ((char *)ifc.ifc_buf) + ifc.ifc_len; ) {
+ struct ifreq *ifr;
char bcdd[16];
- if (ifc.ifc_req[i].ifr_addr.sa_family != AF_INET) {
+ ifr = (struct ifreq *)ptr;
+#ifdef HAVE_SOCKADDR_LEN
+ if (ifr->ifr_addr.sa_len > sizeof(struct sockaddr)) {
+ ptr += sizeof(ifr->ifr_name) + ifr->ifr_addr.sa_len;
+ } else {
+ ptr += sizeof(ifr->ifr_name) + sizeof(struct sockaddr);
+ }
+#else
+ ptr += sizeof(struct ifreq);
+#endif
+
+ if (ifr->ifr_addr.sa_family != AF_INET) {
continue;
}
- if (ioctl(rpc_get_fd(rpc), SIOCGIFFLAGS, &ifc.ifc_req[i]) < 0) {
+ if (ioctl(rpc_get_fd(rpc), SIOCGIFFLAGS, ifr) < 0) {
printf("ioctl DRBADDR failed\n");
exit(10);
}
- if (!(ifc.ifc_req[i].ifr_flags & IFF_UP)) {
+ if (!(ifr->ifr_flags & IFF_UP)) {
continue;
}
- if (ifc.ifc_req[i].ifr_flags & IFF_LOOPBACK) {
+ if (ifr->ifr_flags & IFF_LOOPBACK) {
continue;
}
- if (!(ifc.ifc_req[i].ifr_flags & IFF_BROADCAST)) {
+ if (!(ifr->ifr_flags & IFF_BROADCAST)) {
continue;
}
- if (ioctl(rpc_get_fd(rpc), SIOCGIFBRDADDR, &ifc.ifc_req[i]) < 0) {
+ if (ioctl(rpc_get_fd(rpc), SIOCGIFBRDADDR, ifr) < 0) {
continue;
}
- if (getnameinfo(&ifc.ifc_req[i].ifr_broadaddr, sizeof(struct sockaddr_in), &bcdd[0], sizeof(bcdd), NULL, 0, NI_NUMERICHOST) < 0) {
+ if (getnameinfo(&ifr->ifr_broadaddr, sizeof(struct sockaddr_in), &bcdd[0], sizeof(bcdd), NULL, 0, NI_NUMERICHOST) < 0) {
continue;
}
if (rpc_set_udp_destination(rpc, bcdd, 111, 1) < 0) {